Organic electronic device including encapsulation layer

An organic electronic device, comprising:

• a substrate;
• an organic electronic element formed on the substrate;
• and
• an encapsulation film encapsulating top and side surfaces of the organic electronic element in their entirety,
• wherein the organic electronic element comprises a transparent electrode formed on the substrate, and a light emitting organic material layer formed on the transparent electrode,
• wherein the light emitting organic material layer comprises a hole transport layer, an emitting layer and an electron transport layer,
• wherein the encapsulation film comprises a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition or a crosslinked product thereof,
• wherein the pressure-sensitive adhesive composition comprises a polymer derived from butylene and tackifier,
• wherein the pressure-sensitive adhesive composition has a Mooney viscosity (η*) of 7,000 Pa·s to 170,000 Pa-s measured at 30° C., and of 5,200 Pa·s to 150,000 Pa·s measured at 100° C., by a shear stress using a planar jig having a diameter of 8 mm at a strain of 5%, a frequency of 1 Hz, after curing by UV irradiation,
• wherein the pressure-sensitive adhesive composition further comprises a multifunctional energy ray polymerizable compound of Formula 2,
• wherein the pressure-sensitive adhesive composition comprises the polymer derived from butylene in an amount of 50 to 90 parts by weight and the multifunctional active energy ray polymerizable compound of Formula 2 in an amount of 5 to 25 parts by weight, based on 100 parts by weight of the pressure-sensitive adhesive composition,
• wherein the pressure-sensitive adhesive composition comprises the tackifier in an amount of 5 to 100 parts by weight with respect to 100 parts by weight of the polymer derived from butylene,
• wherein the polymer derived from butylene is a copolymer of diene and a butylene-based compound including a carbon-carbon double bond, and
• wherein the tackifier is a hydrogenated cyclic olefin-based polymer:
• wherein R1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, n is an integer of 2 or higher, and X is a residue derived from a linear, branched or cyclic alkyl group having 3 to 30 carbon atoms.